Packing for Ryanair requires precision to avoid their notorious gate fees. If you are on a "Value Fare," you are limited to one small personal item (40 x 30 x 20 cm) that must fit under the seat. The best strategy is to use a soft-sided cabin backpack rather than a rigid case, as it can be "squished" into the sizer if needed. Use packing cubes to compress your clothes and wear your heaviest items (like boots and jackets) onto the plane. Utilize your "duty-free" bag allowance; Ryanair allows you to carry one bag of airport purchases in addition to your personal item, which many travelers use as a "stealth" extra bag for small essentials. Finally, remember that all liquids must be in a single 20cm x 20cm transparent bag, so prioritize solid toiletries to save space and simplify your security check.